In Celtic wisdom the sacred is as present on earth as it is in heaven, as immanent as it is transcendent, as human as it is divine, as physical as it is spiritual. The sacred can be breathed in, tasted, touched, heard, and seen as much in the body of the earth and the body of another living being as in the body of religion. It is the true essence of all life.
A human being is part of a whole, called by us the "Universe", a part limited in time and space. We experience ourselves, our thoughts and feelings, as something separated from the rest -- a kind of optical delusion of our consciousness. This delusion is a kind of prison for us, restricting us to our personal desires and to affection for a few persons nearest us. Our task must be to free ourselves from this prison by widening our circles of compassion to embrace all living creatures and the whole of nature in its beauty.